BIC Subject Categories and Qualifiers

This is BIC’s Subject Categories and Qualifiers Scheme, version 2.1 released November 2010, the standard classification scheme for the UK book trade and some other English language markets, available from

Note that BIC has announced that there will be no further development of the BIC scheme, and that Thema is its preferred subject scheme for current and future use. Browse the latest version of the Thema international, multilingual subject category scheme here.

See the Search hints below

Code Description
T Technology, engineering, agriculture
Do not use “T” on individual books; select appropriate code(s) from Section T below
TT Other technologies and applied sciences
TTA Acoustic and sound engineering
TTB Applied optics
TTD Space science
See also: WNX “Popular astronomy and space” for popular works
TTM Military engineering
TTP Explosives technology and pyrotechnics
TTS Marine engineering
TTU Mining technology and engineering
See also: RBGL “Economic geology”
TTV Other vocational technologies and trades
TTX Taxidermy

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